Question

Draw a frequency curve for the following distribution.

$\begin{array}{ccccccc}\text{Class-interval}& 0-10& 10-20& 20-30& 30-40& 40-50& 50-60\\ \text{Frequency}& 4& 10& 15& 18& 20& 16\end{array}$

Answer 1

The frequency distribution is continuous with equal class-intervals. We will first prepare a histogram and then the frequency curve. The class-intervals are shown along the X-axis and frequency on the Y-axis.